body{
    flex-direction: column;
}
main{
    width: 100%;
    overflow-y: scroll;
    /* height: auto; */
}
.course_training_box{
    width: 100%;
    height: 100%;
    padding: 0 1.5rem;
    /* background: #f60; */
}
.course_training{
    width: 100%;
    height: 6rem;
    font-size: 2.3rem;
    color: #4294FF;
    text-align: center;
    line-height: 6rem;
    letter-spacing: 0.5rem;
    border-bottom: 1px solid #ddd;
}
.mine_box{
    width: 100%;
    height: auto;
    flex-direction: column;
}
.curriculum_tit{
    font-size: 1.8rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}
.curriculum_video{
    width: 100%;
    height: 21rem;
    border-radius: 1.5rem;
    box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.4);
    background: skyblue;
}
.curriculum_img{
    width: 38.5rem;
    height: 15rem;
    border-radius: 1.5rem 1.5rem 0 0;
}
.box1{
    /* position: relative; */
    width: 100%;
    height: 6rem;
    background: #fff;
    overflow: hidden;
}
.tit_big{
    margin-top: 0.5rem;
    margin-left: 1.6rem;
    font-size: 1.8rem;
    color: #101010;
}
.tit_small{
    margin-top: 0.5rem;
    margin-left: 1.6rem;
    font-size: 1.2rem;
    color: #9A9A9A;
}
.curriculum_video1{
    position: relative;
    width: 100%;
    height: 14rem;
    margin-top: 1rem;
    border-radius: 1.5rem;
    background: skyblue;
    box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.4);
}
.curriculum_video1 img{
    width: 100%;
    height: 14rem;
    border-radius: 1.5rem;
}
.tit_big1{
    position: absolute;
    top: 5.6rem;
    left: 2.2rem;
    width: 33rem;
    height: 2.8rem;
    left: 2.2rem;
    font-size: 2rem;
    color: #4294FF;
}
.tit_small1{
    position: absolute;
    top: 9.1rem;
    left: 2.2rem;
    font-size: 1.4rem;
    color: #9A9A9A;
}